Capital theory has languished in the backyard of economics since the Cambridge controversy at the latest. However, economic theory cannot move forward without addressing the question of the nature of capital and its historical limits. This book offers a new approach to the problem by drawing on both the achievements of classical political economy, including the work of Karl Marx, and the latest advances in economic theory. It shows that the nature of capital can only be understood by going beyond the narrow economic view. A modern theory of capital requires taking into account the results of theories of culture, information, and evolution.